The promising performance of the QD-PODG model motivates further research on this approach.
An extension to 2D geometry is the next logical step. To make the method robust for such extensions, a desirable feature is to enforce positivity of the expanded intensities. Secondly, work must be done towards generation of
enhanced POD for the problems at hand; one technique would be to use symmetry-reduction methods [1]}, [2]} which are known to improve basis generation for traveling waves.
